Functions, Namespaces & Exceptions in C++ Quiz 2

1 / 36

What is the default return type of a function?

float

char

int

void

2 / 36

How can you access the arguments that are manipulated in the function?

arg_list

vg_list

va_list

both va_list & arg_list

3 / 36

What will we not do with function pointers?

allocation of memory

both allocation & deallocation of memory

deallocation of memory

finds memory status

4 / 36

What is the mandatory part to present in function pointers?

data types

return values

5 / 36

How many types of modularization are there in c++?

6 / 36

which of the following can be passed in function pointers?

objects

functions

data types

variables

7 / 36

Which keyword is used to check exception in the block of code?

try

handlers

throw

catch

8 / 36

If we start our function call with default arguments means, what will be proceeding arguments?

default arguments

empty arguments

user & empty arguments

user argument

9 / 36

What is the mandatory preprocessor directive for c++?

#undef <iostream>

#macro <iostream>

#include <iostream>

#define <iostream>

10 / 36

What is the maximum number of arguments or parameters that can be present in one function call?

256

255

11 / 36

What will initialize the list of arguments in stdarg.h header file?

vg_arg

va_arg

va_list

va_start

12 / 36

Which keyword is used to access the variable in the namespace?

dynamic

using

static

const

13 / 36

Identify the correct statement.

Namespace is used to mark the beginning of the program

Namespace is used to mark the beginning & end of the program

A namespace is used to separate the class, objects

Namespace is used to group class, objects and functions

14 / 36

What we can?t place followed by the non-default arguments?

both trailing & default arguments

default arguments

trailing arguments

leading arguments

15 / 36

What is the default calling convention for a compiler in c++?

__stdcall

__pascal

__cdecl

__fastcall

16 / 36

which of the following is used to implement the c++ interfaces?

abstract classes

default variables

absolute variables

constant variables

17 / 36

Which operator is used for accessing a member of namespace?

18 / 36

What is similar to the interface in c++?

methods & instance of a class

methods

pure abstract class

instance of a class

19 / 36

To where does the program control transfers when the exception is arisen?

catch

throw

handlers

try

20 / 36

What will happen when the handler is not found for an exception?

calls the standard library function terminate()

executes the remaining block

raise an error

raise an error and executes the remaining block

21 / 36

What is the correct syntax of defining a namespace?

namespace name{}

namespace name{};

Namespace name{};

typedef namespace name{} NAME

22 / 36

which keyword is used to define the macros in c++?

#define

macro

define

#macro

23 / 36

Which operator is used to signify the namespace?

bitwise operator

conditional operator

ternary operator

scope operator

24 / 36

How many types of macros are there in c++?

25 / 36

Which header file is used to pass unknown number of arguments to function?

stdio.h

string.h

stdlib.h

stdarg.h

26 / 36

What will happen when the exception is not caught in the program?

error

program will execute

program will execute & displays wrong output

block of that code will not execute

27 / 36

Identify the correct statement.

c++ does not have built-in interfaces

c++ have no concept of interfaces

c++ does have built-in interfaces

c++ does have built-in interfaces & classes

28 / 36

Pick the incorrect statement for namespaces in C++.

Keyword namespace is used at the starting of a namespace definition

Namespace declarations are always global scope

Namespace definitions can be nested

Namespace has access specifiers like private or public

29 / 36

What is the general syntax for accessing the namespace variable?

namespace$operator

namespace,operator

namespace::operator

namespace#operator

30 / 36

What does the client module import?

instance

interface

records

macro

31 / 36

Which symbol is used to declare the preprocessor directives?

32 / 36

How many types do functions fall depends on modularization?

33 / 36

What is the other name of the macro?

executed directive

executed & link directive

scripted directive

link directive

34 / 36

Which of the following implements the module in the program?

header files

interfaces

macro

macro & header files

35 / 36

To which does the function pointer point to?

constants

function

variable

absolute variables

36 / 36

What is the use of Namespace?

To encapsulate the data

It is used to mark the beginning of the program

Encapsulate the data & structure a program into logical units

To structure a program into logical units

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